全文获取类型
收费全文 | 42786篇 |
免费 | 1579篇 |
国内免费 | 15篇 |
出版年
2020年 | 358篇 |
2019年 | 414篇 |
2018年 | 682篇 |
2017年 | 668篇 |
2016年 | 813篇 |
2015年 | 575篇 |
2014年 | 583篇 |
2013年 | 2635篇 |
2012年 | 1321篇 |
2011年 | 1290篇 |
2010年 | 676篇 |
2009年 | 650篇 |
2008年 | 974篇 |
2007年 | 963篇 |
2006年 | 847篇 |
2005年 | 2011篇 |
2004年 | 1332篇 |
2003年 | 1079篇 |
2002年 | 816篇 |
2001年 | 1286篇 |
2000年 | 1229篇 |
1999年 | 900篇 |
1998年 | 397篇 |
1992年 | 881篇 |
1991年 | 828篇 |
1990年 | 864篇 |
1989年 | 745篇 |
1988年 | 732篇 |
1987年 | 711篇 |
1986年 | 742篇 |
1985年 | 809篇 |
1984年 | 607篇 |
1983年 | 560篇 |
1982年 | 369篇 |
1981年 | 356篇 |
1980年 | 343篇 |
1979年 | 709篇 |
1978年 | 433篇 |
1977年 | 419篇 |
1976年 | 418篇 |
1975年 | 606篇 |
1974年 | 695篇 |
1973年 | 740篇 |
1972年 | 637篇 |
1971年 | 600篇 |
1970年 | 588篇 |
1969年 | 577篇 |
1968年 | 766篇 |
1967年 | 680篇 |
1966年 | 610篇 |
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
41.
S Sipe R W Engle 《Journal of experimental psychology. Learning, memory, and cognition》1986,12(3):402-412
Four experiments were conducted to determine whether echoic memory plays a role in differences between good and poor readers. The first two experiments used a suffix procedure in which the subject is read a list of digits with either a tone control or the word go appended to the list. For lists that exceeded the length of the subjects memory span by one digit (i.e., that avoided ceiling effects), the poor readers showed a larger decrement in the suffix condition than did the good readers. The third experiment was directed at the question of whether the duration of echoic memory is different for good and poor readers. Children shadowed words presented to one ear at a rate determined to give 75-85% shadowing accuracy. The items presented to the nonattended ear were words and an occasional digit. At various intervals after the presentation of the digit, a light signaled that the subject was to cease shadowing and attempt to recall any digit that had occurred in the nonattended ear recently. Whereas good and poor readers recalled the digit equally if tested immediately after presentation, the poor readers showed a faster decline in recall of the digit as retention interval increased. A fourth experiment was conducted to determine whether the differences in echoic memory were specific to speech stimuli or occurred at a more basic level of aural persistence. Bursts of white noise were separated by 9-400 ms of silence and the subject was to say whether there were one or two sounds presented. There were no differences in detectability functions for good and poor readers. 相似文献
42.
43.
Collin L. Davidson MS LaRicka R. Wingate PhD Kathy A. Rasmussen BA Meredith L. Slish BA 《Suicide & life-threatening behavior》2009,39(5):499-507
The current study hypothesized that (1) hope would negatively predict burdensomeness, thwarted belongingness, and acquired capability to enact lethal injury; (2) hope would negatively predict suicidal ideation; and (3) the interpersonal suicide risk factors would predict suicidal ideation. Results indicated that hope negatively predicted burdensomeness and thwarted belongingness, but positively predicted acquired capability to enact suicide. Contrary to our second hypothesis, hope did not predict suicidal ideation, but interpersonal risk factors for suicide predicted suicidal ideation. Results are discussed in terms of implications for hope theory and Joiner's (2005) interpersonal risk factors for suicide, and for clinical practice. 相似文献
44.
Stephen R. Munzer 《The Journal of religious ethics》2005,33(4):747-781
Self‐abandonment and self‐denial are, respectively, Catholic and hyper‐Calvinist analogues of each other. Roughly, each requires the surrendering of a person to God's will and providence through faith, hope, and love. Should the self‐abandoning/self‐denying individual accept his or her own damnation if that be God's will? This article, which is virtually alone in discussing the Catholic and Reformed Protestant traditions together, answers “No.” The unqualified self‐abandonment present in quietism and the radical self‐denial of Samuel Hopkins are perverse and irrational responses to the prospect of hell because they run counter to the Christian's deepest need to spend eternity with God. However, a qualified self‐abandonment is intellectually defensible and offers a viable Christian piety. 相似文献
45.
Tavis S Campbell Blaine Ditto Jean R Séguin Jean-Marc Assaad Robert O Pihl Daniel Nagin Richard E Tremblay 《Health psychology》2002,21(6):594-600
A growing literature has observed a significant reduction in pain sensitivity among hypertensive animals and humans. It is uncertain whether a reduced sensitivity to pain can be observed in nonnotensive individuals who go on to develop high blood pressure. Blood pressure (BP) was reassessed in one hundred fifteen 19-year-old boys initially tested at age 14, when they were also presented with a pain stimulus (mechanical finger pressure). Hierarchical regression analyses indicated that information regarding pain tolerance improved prediction of changes in systolic and diastolic blood pressure beyond that afforded by differences in BP at age 14, parental history of hypertension, and body mass index. These analyses suggest that pain sensitivity may be associated with physiological processes involved in the development of sustained high blood pressure. 相似文献
46.
Kathleen Forcier Laura R Stroud George D Papandonatos Brian Hitsman Meredith Reiches Jenelle Krishnamoorthy Raymond Niaura 《Health psychology》2006,25(6):723-739
A meta-analysis of published studies with adult human participants was conducted to evaluate whether physical fitness attenuates cardiovascular reactivity and improves recovery from acute psychological stressors. Thirty-three studies met selection criteria; 18 were included in recovery analyses. Effect sizes and moderator influences were calculated by using meta-analysis software. A fixed effects model was fit initially; however, between-studies heterogeneity could not be explained even after inclusion of moderators. Therefore, to account for residual heterogeneity, a random effects model was estimated. Under this model, fit individuals showed significantly attenuated heart rate and systolic blood pressure reactivity and a trend toward attenuated diastolic blood pressure reactivity. Fit individuals also showed faster heart rate recovery, but there were no significant differences in systolic blood pressure or diastolic blood pressure recovery. No significant moderators emerged. Results have important implications for elucidating mechanisms underlying effects of fitness on cardiovascular disease and suggest that fitness may be an important confound in studies of stress reactivity. 相似文献
47.
48.
T. J. Roper R. A. Boakes 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1981,33(2):137-140
TOATES, F. Animal Behaviour: A Systems Approach. Chichester: John Wiley and Sons. 1980. Pp. 299. Hardback £17. Paper back £6.40 ISBN 0 471 27724.
DICKINSON, A. Contemporary Animal Learning Theory. Cambridge: University Press. 1980. Pp. 177. Hardback £12.50. Paperback £3.95. ISBN 0 521 23469 7. 相似文献
DICKINSON, A. Contemporary Animal Learning Theory. Cambridge: University Press. 1980. Pp. 177. Hardback £12.50. Paperback £3.95. ISBN 0 521 23469 7. 相似文献
49.
RENNEKER R 《The Psychoanalytic quarterly》1952,21(4):528-536
50.
Although a great deal of research has been conducted on the relationship between social support and physical health, the contribution of personality characteristics to this relationship has rarely been assessed. Structural equation modeling was employed to derive and test a model of the direct and indirect relationships between personality characteristics, social network size, the perceived availability of support, socially supportive behaviors, and perceived physical health with a sample of Pennsylvania adults. Significant paths indicate that individuals who perceive themselves as affiliative and as help seekers and help givers report larger social networks, receive more socially supportive behaviors, and perceive that more support is available to them. The perception that support is available shared a direct relationship with perceived physical health. The utility of including multiple measures of social support and personality characteristics related to receiving support in investigations of the relationship between social support and physical health is discussed. 相似文献